The Claim
Creatine supplementation combined with resistance training significantly improves upper-body strength in women, as measured by bench press and handgrip strength, but does not significantly improve lower-body strength.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In women, taking creatine while doing resistance training increases upper-body strength in bench press and handgrip tests, but does not increase lower-body strength.
See the scientific wording
Creatine supplementation combined with resistance training significantly improves upper-body strength in women, with a moderate effect size for bench press (Hedges' g=0.279, 95% CI: 0.008 to 0.550, p=0.043) and handgrip strength (g=0.412, 95% CI: 0.039 to 0.786, p=0.031), but shows no significant benefit for lower-body strength.
Creatine supplements increase a molecule in muscles that helps make energy quickly during short bursts of effort. This gives the muscles in the arms and hands more power to push and grip, especially because women naturally have less of this molecule to start with. The legs don't get stronger because they already have enough of this molecule or use energy differently.
What the research says
1 studyThis study found that when women take creatine and do strength training, their arms and hands get a little stronger, but their legs don’t. That’s exactly what the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.